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  1. 73's de Edd

    bose wave music system III --- display is blank

    I perceived of the . . . " the Bose wave music system III and the bose wave radio series III are different models " As the radio solely being a radio only and the "music system" as having a CD player. The earlier ones had a top cover CD player, while the later units had a front bottom center...
  2. 73's de Edd

    Delco Radio CDM Troubleshooting and Component Identification

    I HEAVILY THIRD the keypad contacts . . . . .from your explanations . . . . each discrepancy is related to having previously made a keyboard contact . . .which apparently, did not electrically connect. Secondly . . . . that POWER AUDIO IC shown is an LM3886TF and not being related to your...
  3. 73's de Edd

    Need help sourcing a power transformer

    Sir Gourockian . . . . . I see that your owned and currently used power supply is for 220VAC and Florida USA is 120VAC,how are you presently solving that voltage disparity . . .an additional , intermediate step down transformer ? And you would be building up the additional power supply for...
  4. 73's de Edd

    Scoreboard repair

    Milhousesmom . . . . . . . . not using my usual lead in address . . . . just in case you are a mom . . . . In reviewing / referencing all case profiles of that regulator . . . . . below . . . . You are experiencing ground on the suspected REGULATED voltage out on the 1117 ' s center pin. As...
  5. 73's de Edd

    CRT TV repair, color issues, trinitron kv-21r1d

    Sir komrad2236 . . . . . You say . . . I just sent green color from main board trough blue and red line on C board, and in both cases green was not good. But I also sent blue and red from main board trough the green line on C board and they showed up, shouldn't that mean that the (GREEN)...
  6. 73's de Edd

    CRT TV repair, color issues, trinitron kv-21r1d

    Sir komrad2236 . . . . . Individual C board builds also use some hot running metal film resistors on feeding their kine drive power transistors , so check to see if one has not developed a cold solder ring joint and popped open from its PCB connection. Your efforts were being concentrated...
  7. 73's de Edd

    Help Reading Schematic on My Old Sony AM/FM Mono Radio (Leaked Battery Acid

    Sir whiteoutage . . . . . Can someone smarter than me reverse engineer this string? Why "soitanly ! " . . . . but its now only being possible, with the aid of that photo of that . . . . actual SUNNY, dial cord drive mechanism. Now, indeed, that SONYs viewed mechanical structuring, is...
  8. 73's de Edd

    Help Reading Schematic on My Old Sony AM/FM Mono Radio (Leaked Battery Acid

    Sir whiteoutage . . . . . " locate a working replacement " THAT'S gotta be categorized as . . . . . a rats anal orfice chance in Hades ! Instead, don't "muck" with disassembling the switch(es) just RE-ADD some oil to their mechanically moving / sliding portions . . . .which your...
  9. 73's de Edd

    NOW HEAR THIS . . . .NOW HEAR THIS . . . . . ALL POINTS BULLETIN

    duke37 from Derbyshire. UK duke37 was last seen: Jul 25, 2020 No recent activity information is available for duke37. Duke . . . .DUKE . . .DUKE ? . . . . . . . .Where you go o o o o o o o o o o o?
  10. 73's de Edd

    Help Reading Schematic on My Old Sony AM/FM Mono Radio (Leaked Battery Acid

    Sir whiteoutage . . . . . is it OK to hold a 1000uF 25V cap in your hand while touching it to a suspected cap Why shore . . . since its only being at a 3v DC potential from that power supply point. I don't expect your INTERMITTENT problem to be with those caps, after your confirming no...
  11. 73's de Edd

    Power Source adapter

    What is the "device".? Because . . . . . . we need to know if that device is frequency sensitive . . . . like a record players speed if old school AC motor drive.. AND, most importantly, the devices wattage consumed . . . . . since you would typically only use this inefficient procedure (...
  12. 73's de Edd

    Help Reading Schematic on My Old Sony AM/FM Mono Radio (Leaked Battery Acid

    Sir whiteoutage . . . . . Why for ?. . . . .you no give us . . .most honnable . . . Sony . . . . units model number, as their OFF-FISH-ULL complete service info may also give a chassis, parts mounted PCB drawing additionally . . . plus the Xstrs and part numbers . . .particularly for the...
  13. 73's de Edd

    Monitor

    Nope . . . . . not unless you can turn back time . . . . .you just bought the farm. Was this degree of support frame bending incurred by YOU ? Or did you just buy yourself an unseen pig in a poke ? Or, thirdly, it actually looks like some stores dumpster bound scrap, with ALL IDENTIFICATION...
  14. 73's de Edd

    Comedy Thread

  15. 73's de Edd

    Help identify power components

    All of your efforts so far are being related to . . . . now confirmed . . . . good components that are in the path to that sealed PSU unit. Did you initially turn the unit on to see if 12VDC was coming out of its output terminals? Since a WHOLE power supply and associated SMPS circuitry...
  16. 73's de Edd

    Ion pathfinder 2 portable bluetooth speaker

    Good, in close, focus-ses-sed photo(s) of the main board, to see how its built and what's on it are needed, to start with . We assume its te- totally dead and no lites or sound whatsoever ? No conjunct info found of there being a teardown on the internet of its internals for referencing . . ...
  17. 73's de Edd

    Charging Lithium Battery Pack without Charger

    Sir whiteoutage . . . . . . . . . On the photo of the battery pack there are 3 silver phillips screws on either side of two power Mosfets, both mounted on a common heatsink. If they happen to be IRF1404's or equivalent N type Mosfet family, look and see their #'ing , as we can use one of...
  18. 73's de Edd

    Charging Lithium Battery Pack without Charger

    Sir whiteoutage . . . . . . . . . ( No power outages HERE . . . . . .at least . . . . . not yet! ) Are Your WEED EATER branded battery packs being the smaller Black and Green WE20VRB 20V Lithium-Ion or the heftier / larger Black and Gray B16-2025, 20V Battery ? Can you check the battery...
  19. 73's de Edd

    old kitchen fan doesn't work

    Sir Neth . . . . . I believe that your REAL answer of proper re-assemblage of your " puzzle" will be by the making of an inspection of the . . . .basically same . . . . . . stacking of those equivalent parts on the other end of the motor that has the motor shaft passing completely thru them...
  20. 73's de Edd

    Quooker PCB short circuited

    Light reflections are letting me see that . . . . .That board seems to have a good sprayed on conformal coating except possibly / likely directly UNDER the IC's and relays. A drop of water hiding there can take days to evaporate internalward. If my situation, I would be warming up my oven to...
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